Zobrazeno 1 - 7
of 7
pro vyhledávání: '"J. C. Nipko"'
Autor:
J. C. Nipko, Chun-Keung Loong
Publikováno v:
Physical Review B. 57:10550-10554
The phonon density of states of aluminum nitride was determined by time-of-flight neutron spectroscopy using a polycrystalline sample. The observed phonon excitation spectrum consists of a broadband centered at about 35 meV, a small gap in the 75{end
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c97167188e823a9183072d9e5a39a5a
https://doi.org/10.1103/physrevb.57.10550
https://doi.org/10.1103/physrevb.57.10550
Publikováno v:
Applied Physics Letters. 73:34-36
We report the measured phonon density of states of a bulk GaN powder by time-of-flight neutron spectroscopy. The observed one-phonon excitation spectrum consists of two broad bands centered at about 23 and 39 meV corresponding to the acoustic and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9e35417ae011f7d2716d56a284678e9
https://doi.org/10.1063/1.121714
https://doi.org/10.1063/1.121714
Publikováno v:
Physica B: Condensed Matter. :666-668
The structure of NdP{sub 5}O{sub 14} consists of cross-linked double chains of corner-sharing PO{sub 4} tetrahedra extending parallel to the crystallographic a-axis. Each Nd atom is coordinated by 8 oxygen atoms. The NdO{sub 8} polyhedra are isolated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8e6ae9c02c90c864345de50903b2d2a
https://doi.org/10.1016/s0921-4526(97)00686-8
https://doi.org/10.1016/s0921-4526(97)00686-8
Autor:
Chun-Keung Loong, J. C. Nipko
Publikováno v:
Physica B: Condensed Matter. :415-417
A lattice dynamical investigation of zircon (ZrSiO{sub 4}) has been carried out to obtain a microscopic understanding of its thermodynamic properties, as well as to examine possible soft modes that may contribute to the phase transformation to scheel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f773867afa6e97fe10655b98c1076d8
https://doi.org/10.1016/s0921-4526(97)00606-6
https://doi.org/10.1016/s0921-4526(97)00606-6
Publikováno v:
Physica B: Condensed Matter. :1252-1254
Proton or lithium diffusion is a critical electrode process that occurs in manganese dioxide electrode materials during cycling of either aqueous (alkaline) or non-aqueous (lithium) batteries. The structural and electrochemical properties of a number
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b35020a8d1d80b37a3b533462087748e
https://doi.org/10.1016/s0921-4526(97)00846-6
https://doi.org/10.1016/s0921-4526(97)00846-6
Publikováno v:
Physica B: Condensed Matter. :406-408
Inelastic scattering data have been collected at incident neutron energies of 50, 150, 300 and 600 meV for hydrogarnet [Sr{sub 3}Al{sub 2}(O{sub 4}H{sub 4}){sub 3}], a model compound for silicate hydrogarents found in the Earth`s crust and mantle. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1928df78bac8d702d762f9defd4315d
https://doi.org/10.1016/s0921-4526(97)00603-0
https://doi.org/10.1016/s0921-4526(97)00603-0
Publikováno v:
Journal of Applied Physics. 82:3152-3154
The complete sets of elastic constants of 4H and 6H silicon carbide single crystals were determined by Brillouin scattering. The elastic constants of 6H SiC are C11=501±4, C33=553±4, C44=163±4, C12=111±5, and C13=52±9 GPa; the corresponding ones
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f05d25bdb211e9a0b6cb5fe0a8cb1214
https://doi.org/10.1063/1.366100
https://doi.org/10.1063/1.366100